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[83.57.170.65]) by smtp.gmail.com with ESMTPSA id i6sm40891138wra.1.2020.09.17.01.09.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Sep 2020 01:09:45 -0700 (PDT) Subject: Re: [PATCH V9 6/6] hw/mips: Add Loongson-3 machine support To: Huacai Chen References: <1600222344-16808-1-git-send-email-chenhc@lemote.com> <1600222344-16808-7-git-send-email-chenhc@lemote.com> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: <828c48db-c409-2c51-ab4b-795623d67193@amsat.org> Date: Thu, 17 Sep 2020 10:09:44 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::343; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x343.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NICE_REPLY_A=-0.062, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Huacai Chen , Aleksandar Rikalo , QEMU Developers , Jiaxun Yang , Aleksandar Markovic , Aurelien Jarno Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 9/16/20 11:49 AM, Huacai Chen wrote: >>> We now already have a full functional Linux kernel (based on Linux-5.4.x >>> LTS, the kvm host side and guest side have both been upstream for Linux- >>> 5.9, but Linux-5.9 has not been released yet) here: >>> >>> https://github.com/chenhuacai/linux >>> >>> Of course the upstream kernel is also usable (though it is "unstable" >>> now): >>> >>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >>> >>> How to use QEMU/Loongson-3? >>> 1, Download kernel source from the above URL; >>> 2, Build a kernel with arch/mips/configs/loongson3_defconfig; >>> 3, Boot a Loongson-3A4000 host with this kernel (for KVM mode); >>> 4, Build QEMU-master with this patchset; >> >> Which produces all the following errors: >> >> hw/mips/loongson3_virt.c: In function 'get_cpu_freq': >> hw/mips/loongson3_virt.c:372:12: error: variable 'freq_reg' has >> initializer but incomplete type >> struct kvm_one_reg freq_reg = { >> ^ >> hw/mips/loongson3_virt.c:373:9: error: unknown field 'id' specified in >> initializer >> .id = KVM_REG_MIPS_COUNT_HZ, >> ^ >> hw/mips/loongson3_virt.c:373:15: error: 'KVM_REG_MIPS_COUNT_HZ' >> undeclared (first use in this function) >> .id = KVM_REG_MIPS_COUNT_HZ, >> ^ > I don't know how to reproduce these errors, struct kvm_one_reg and > KVM_REG_MIPS_COUNT_HZ are both defined..., could you please tell me? > My build steps are like this: > mkdir build > cd build > ../configure > make Building on Ubuntu 20.04. C compiler for the host machine: cc (gcc 9.3.0 "cc (Ubuntu 9.3.0-10ubuntu2) 9.3.0") C linker for the host machine: cc ld.bfd 2.34